When do peregrines leave the nest?

Young peregrine falcons fledge about 42 to 46 days after hatching. Fledging is the term for a young bird leaving the nest and flying for the first time.

Peregrine falcons are capable of flying short distances when they first fledge, and they rely heavily on their wings for survival. They continue to be cared for by their parents until they become completely independent, which can take several years.